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प्रश्न
Which method of crop improvement can be practised by a farmer if he is inexperienced?
विकल्प
clonal selection
mass selection
pureline selection
hybridisation
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उत्तर
mass selection
Explanation:
Mass selection is easy and suitable for inexperienced farmers because it involves selecting seeds from healthy, high-yielding plants without needing special skills or tools.
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संबंधित प्रश्न
In a hexaploid wheat( 2n = 6 x = 42 ) the haploid (n) and the basic(x) number of chromosomes respectively are ______.
______ is the chemical used for doubling the chromosomes.
The process of producing an organism with more than two sets of chromosome is called mutation.
A group of plants produced from a single plant through vegetative or asexual reproduction are called a pureline.
Golden rice is a hybrid.
Assertion: Colchicine reduces the chromosome number.
Reason: It promotes the movement of sister chromatids to the opposite poles.
Give the name of wheat variety having higher dietary fibre and protein.
Semi-dwarf varieties were introduced in rice. This was made possible by the presence of dwarfing gene in rice. Name this dwarfing gene.
Name three improved characteristics of wheat that helped India to achieve high productivity
Higher Order Thinking Skill (HOT)
Polyploids are characterised by gigantism. Justify your answer.
